good vs bad

good and bad both are nouns.

Word	Noun	Adjective	Verb	Adverb
good	Yes	Yes	No	Yes
bad	Yes	Yes	No	Yes

good (noun)	bad (noun)
a raw material that is sold in large quantities, usually to other businesses for manufacturing or production purposes	that which is below standard or expectations as of ethics or decency
benefit
moral excellence or admirableness
that which is pleasing or valuable or useful

good (adjective)	bad (adjective)
having desirable or positive qualities especially those suitable for a thing specified	having undesirable or negative qualities
morally admirable	feeling or expressing regret or sorrow or a sense of loss over something done or undone
promoting or enhancing well-being	reproduced fraudulently
having the normally expected amount	characterized by wickedness or immorality
with or in a close or intimate relationship	capable of harming
thorough	below average in quality or performance
generally admired	serious or severe
resulting favorably	not capable of being collected
not left to spoil	not working properly
not forged	nonstandard
tending to promote physical well-being; beneficial to health	(of foodstuffs) not in an edible or usable condition
in excellent physical condition	feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')
appealing to the mind	physically unsound or diseased
agreeable or pleasing	not financially safe or secure
exerting force or influence
most suitable or right for a particular purpose
capable of pleasing
deserving of esteem and respect
of moral excellence
having or showing knowledge and skill and aptitude
financially safe

good (adverb)	bad (adverb)
(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (`good' is a nonstandard dialectal variant for `well')	very much; strongly
completely and absolutely (`good' is sometimes used informally for `thoroughly')	with great intensity (`bad' is a nonstandard variant for `badly')